Plug type socket



Feb. l5, 1944. A, J. KUNG 'E1-AL 2,341,922

PLUG TYPE SOCKET Filed Dec. 18, 1942 IN VEN TORS 65, N l MW M M@ M55, ma

MWA in@ Patented Feb. 15, V1944 PLUG TYPE SOCKET Alexander J. King, Trenton, N. J., and David S. Robbins, Hamden, Conn., assignors to The American Steel and Wire Company of New Jersey, a corporation of New Jersey Application December 18, 1942, Serial No. 469,445

10 Claims.

This invention relates to a plug type socket and more particularly to such sockets that are suitable for holding hemp center or Wire center rope.

At the present time, Wire ropes are commonly held by means of znced or Wedge sockets. The zinc socket requires heating of the zinc and has other disadvantages. The wedge socket requires extra rope, is cumbersome and has a low holding power when using small or large size ropes.

It is an object of our invention to provide a plug type socket which will hold the several strands of a Wire rope separately and so distribute the load properly on each strand.

This and other objects will be more apparent after referring to the following description and attached drawing in which:

Fig. 1 is an assembled longitudinal sectional view of the fitting;

Fig. 2 is a cross-sectional elevation taken on line Il-II of Fig. 1;

Fig. 3 is a cross-sectional elevation taken on line III- III of Fig. 1;

Fig. 4 shows an end elevation of the tapered plug; and

Fig. 5 is a longitudinal elevation of the same.

Referring more particularly to the drawing, the reference numeral 2 indicates a wire center rope having a central strand 4 and outer strands 6, which are unwound asshown in Fig. 1. The plug type socket has a split plug 8, which is tapered as shown in Figs. 1 and 5. As best shown in Fig. 4, there are a plurality of flutes I0 extending longitudinally along the outer surface of the plug. An opening l2 extends the length of the plug and one-half of this opening will be in each of the sections of the split plug.

An outer basket or holding member I4 has an internal taper I6 having the same angle with respect to the axis of the fitting as the taper on the plug. The internal surface of the member I4 may have flutes I8 arranged around its periphery in the same manner as the iiutes Ill of the plug 8, but preferably such utes will be omitted.

A sleeve 20 for preventing foreign substances from loading between the strands of the rope is threaded on the member I4. As shown in Fig. 1, this sleeve is tapered on the inside for about three-fourths of its length to enable the rope to be pulled down without contacting the metal. The remaining portion is straight to allow the complete rope to go out of the sleeve without touching either side.

To place the socket on the rope, the member I4 with the sleeve 20 thereon is placed over the end of the rope. The center strand 4 is placed within the opening I2 of the split plug and the outer strands 6 are flared outwardly and seated in the utes I0. The plug 8 is then driven in place and a strap 22 is attached to the basket I4 by means of cap screws 24 to -prevent the plug from backing up. When the plug is driven in place the two sections thereof will be forced together to grip the central strand 4 within the opening I2. At the same time the outer strands 6 will be gripped between the members 8 and I4. Since the angles of taper of the plug 8, the basket I4, and the utes therein are the same, the rope will be gripped throughout the length of the flutes. v

An eye member 26 or other suitable fitting is integrally attached to the basket I4.

While one embodiment of the invention has been shown and described, it is apparent that other adaptations and modifications may be made without departing from the invention as deiined in the following claims.

-We claim:

l. A fluted plug type socket for wire rope comprising a tapered 4plug having longitudinally extending vflutes thereon, a clamping member having a tapered bore for receiving the plug, said bore having longitudinally extending flutes therein, the utes in the plug and clamping member being arranged to receive and clamp the strands of the rope therebetween when the plug is pressed into the clamping member, means for holding the plug and clamping member in clamping position, and al protective sleeve threaded to said clamping'member extending to the unwound portion of said rope, said sleeve preventing foreign substances from loading between the strands of the rope.` l

2. A fiuted plug type socket for wire rope com-V prising a tapered plug having longitudinally extending flutes thereon, a clamping member having a tapered bore for receiving the plug, said bore having longitudinally extending iiutes therein, the flutes in the plug and clamping member being arranged to receive and clamp the strands of the rope therebetween when the plus is pressed into the clam-ping member, said plug being split and having a longitudinal opening through the center thereof for receiving and clamping the central strand of the rope, and means for holding the plug and clamping member in clamping position.

3. A fluted plug type socket for wire rope comprising a tapered plug having longitudinally extending utes thereon, a clamping member having a tapered bore for receiving the plug, said bore having longitudinally extending flutes therein, the flutes in the plug and clam-ping mem ber being arranged to receive and clamp the strands of the rope therebetween when the plug is pressed into the clamping member, said plug being split and having a longitudinal opening through the center thereof forreceiving and clamping the central strand of the rope, means for holding the plug and clamping member in clamping position, and a protective sleeve threaded to said clamping member and extending to the unwound portion of said rope.

4. A iluted plug type socket for wire rope comprising a tapered plug having longitudinally extending ilutes thereon, a clamping member hav ing a tapered bore for receiving the plug, said bore having longitudinally extending flutes therein, the utes in the plug and clamping member being arranged to receive and clamp the strands of the rope therebetween when the plug is pressed into the clamping member, said plug being split and having a longitudinal opening through the center thereof for receiving and clamping the central strand of the rope, and a strap engaging the base of the -plug and attached to the clamping member to hold the plug and clamping member in clamping position.

5. A fluted plug type socket for wire rope comprising a tapered plug having longitudinally eX tending flutes thereon, a clamping member having a tapered bore for receiving the plug, said bore having longitudinally extending utes therein, the flutes in the plug and clamping member being arranged to receive and clamp the strands of the rope therebetween when the plug is -pressed into the clamping member, said plug being split andv having a longitudinal opening through the center thereof for receiving and clamping the central strand of the rope, a protective sleeve threaded to said clamping member and extendingl to the unwound portion of said rope, and a strap engaging the base of the plug and attached to the clamping member to hold the plug and clamping member in clamping position.

6'. A fluted plug type socket for wire rope coinprising a tapered plug having longitudinally extending flutes thereon for receiving the strands of the rope, a clamping member having a tapered bore for receiving the plug, the plug and clamping member being arranged to clamp the strands of the rope therebetween when the plug is pressed into the clamping member, means for holding the plug and clamping member in clamping position, and a protective sleeve threaded to said clamping member extending to the unwound portion of said rope, said sleeve ypreventing foreign substances from loading between the strands of the rope.

7. A iluted plug type socket for wire rope comprising a tapered plug having longitudinally extending fiutes thereon for receiving the strands of the rope, a clamping member having a tapered bore for receiving the plug, the plug and clamping member being arranged to clamp the strands of the rope therebetween when the plug is pressed into the clamping member, said plug being split and having a longitudinal opening through the center thereof for receiving and clamping the central strand of the rope, and means for holding the plug and clamping member in clamping position.

8. A fluted plug type socket for wire rope comprising a tapered plug having longitudinally extending ilutesr thereon for receiving the strands of the rope, a clamping member having a tapered bore for receiving the plug, the plug and clamping member being arranged to clamp the strands of the rope therebetween when the plug is pressed into the clamping member, said plug being split and having a longitudinal opening through the center thereof for receiving and clamping the central strand of the rope, means for holding the plug and clamping member in clamping position, and a protective sleeve threaded to said clamping member and extending to the unwound portion of said rope.

9. A iluted plug ty-pe socket for wire rope comprising a tapered plug having longitudinally ex tending flutes thereon for receiving the strands of the rope, a clamping member having a tapered for receiving the plug, the plug and clamping member being arranged to clamp` the strands ol the rope therebetween when the plug isV pressed into the clamping member, said plug being split and having a longitudinal opening through the center thereof for receiving and Vclamping the central strand of the rope, and a strap engaging the base of the plug and attached to the clamping member to hold the plug and clamping member in clamping position.

l0. A fluted plug type socket for wire rope com.- prising a tapered plug having longitudinally extending utes thereon for receiving the strands of the rope, a clamping member having a tapered bore for receiving the plug, the plug and clamping member beingv arranged to clamp the strands of the rope therebetween when the plug is pressed into the clamping member, saidl plug being split and having a longitudinal opening through the center thereof for receiving and clamping the central strand of the rope, a protective sleeve threaded to said clamping member and extending to the unwound portion of said rope, and a strap enaging the base of the plug and attached to the clamping member to hold the plug and clamping member in clamping position.

ALEXANDER J. KING. DAVID-S. ROBBINS. 

